There are three main sites where you can view the Greek temples in Sicily – Selinunte, Segesta, and Agrigento. Selinunte and Segesta have been reconstructed while much of the temples at Agrigento are still standing from their original state. Agrigento and Selinunte are about two hours apart on the south coast of the island with Selinunte being in the far Southwest and Agrigento located more towards the center. Segesta is located in the northwest corner of Sicily about an hour from the capital, Palermo.
If you are planning on seeing all the sites keep in mind that there are roughly 3 hours of driving time between them depending on traffic. Selinunte is a Greek complex very similar to Pompei, the only difference is that the majority of Selinunte is in ruins (except the Greek temple). Since this temple is reconstructed the security at the site is minimal and you are able to do almost anything your heart desires. Segesta sites high on a mountainside and has also been reconstructed. There is a bonus as you are able to take a small taxi up to the mountain to get incredible views of the mountainside from the Greek theater that was built decades ago.
It is a good idea to hire a car to take you to Sicily to explore these temple sites. Hiring a car gives you the freedom of exploring the place to the core. Car Rental Italy has a spectrum of car rental packages to satiate the commuting needs of the tourists in Italy. They provide cars on hire at economical rates to tourists and renting a car is advisable for tourists as it gives them scope to explore the places on the go and cherish the essence of Italy to the fullest.